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Finding the Fourth Proportional to 290,627.42, 435,705.85 and 90,844.94

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Solution

The fourth proportional to 290,627.42, 435,705.85 and 90,844.94 is: 136,193.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,627.42 : 435,705.85 = 90,844.94 : x
  2. Step 2: Convert to fraction form
    290,627.42/435,705.85 = 90,844.94/x
  3. Step 3: Cross multiply
    290,627.42x = 435,705.85 × 90,844.94
  4. Step 4: Simplify right side
    290,627.42x = 39,581,671,800.90
  5. Step 5: Solve for x
    x = 39,581,671,800.90/290,627.42
  6. Step 6: Final answer
    x = 136,193.87

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